The 1986 200-Volt Persistent Display That Never Arrived

A BBC Archive clip from 1986 shows STC’s prototype persistent display—a liquid-filled panel where molecules align to let light through or block it, driven by a high ~200-volt activation. Unlike modern e-ink, this design aimed to hold an image without continuous power, but the demanding voltage and other hurdles kept it from mass adoption, making it a fascinating glimpse of an almost-made technology from the era.